Soft-template carbonization approach of MOF-5 to mesoporous carbon nanospheres as excellent electrode materials for supercapacitor

Khan, Inayat Ali; Badshah, Amin; Khan, Ishtiaq; Zhao, Dan; Nadeem, Muhammad Arif

doi:10.1016/j.micromeso.2017.06.049

Cited by 70 publications

(22 citation statements)

References 62 publications

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“…Recently, several research groups have reported some 3D PC and nitrogen-doped PC with high specific capacitance and long life [33,34,[37][38][39][40][45][46][47][48][49][50][51][52][53][54][55][56]. The electrochemical properties of these materials and the as-prepared PCs are compared in Fig.…”

mentioning

confidence: 99%

A green and template-free synthesis process of superior carbon material with ellipsoidal structure as enhanced material for supercapacitors

Sun

Guo

et al. 2018

Journal of Power Sources

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Metal Organic Frameworks (MOF) or related carbon materials are the ideal materials for supercapacitors (SPs) due to their high surface area and unique porous structure. Here, we propose a new green and recyclable synthesis method of porous carbon (PC). Aluminum hydroxide (Al(OH)3) and trimesic acid (BTC) are employed as raw materials to obtain aluminium trimesic (denoted as Al-BTC) via their covalent reaction, then the PC is obtained through carbonization and dissolving process to remove the aluminum oxide (Al2O3). Al(OH)3 is recovered by the Bayer method for the next batch. The SEM images show that the PCs have rugby-like morphology with the same of 400 nm wide and 1000 nm long which indicates the PC with c/a ratio of 2.5 providing the largest specific volume surface area. The sample offers 306.4 F g-1 at 1 A g-1, and it can retain 72.2% even at the current density of 50 A g-1. In addition, the PC rovides excellent durability of 50,000 cycles at 50 A g-1 with only 5.05% decline of capacitance. Moreover, the PC has an u tra ast c arge acceptance, and only 4.4 sis required for one single process, which is promising for application in electric vehicles.

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confidence: 99%

A green and template-free synthesis process of superior carbon material with ellipsoidal structure as enhanced material for supercapacitors

Sun

Guo

et al. 2018

Journal of Power Sources

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“…Template‐directed technique including soft‐templating and hard‐templating routes is wide accepted for preparing mesoporous carbon materials . For soft‐templating strategy, the formation of mesoporous structures mainly comes from the assembly of carbon precursors with the help of structure‐directing agents (SDAs), in which the porous structure and pore size can be well adjusted by tuning the synthetic parameters including raw material, pH value, reaction temperature, and the type of surfactants . Among them, the type of surfactants is the most important factor, which directly determines the porous structure and pore size distribution of the terminal products.…”

Section: Preparation Of Carbon‐based Nanomaterialsmentioning

confidence: 99%

“…[175] For soft-templating strategy, the formation of mesoporous structures mainly comes from the assembly of carbon precursors with the help of structuredirecting agents (SDAs), in which the porous structure and pore size can be well adjusted by tuning the synthetic parameters including raw material, pH value, reaction temperature, and the type of surfactants. [176] Among them, the type of surfactants is the most important factor, which directly determines the porous structure and pore size distribution of the terminal products. For example, poly(isoprene)-b-poly(ethylene oxide), polystyrene-b-PEO and poly(ethylene-co-butylene)-b-PEO are usually utilized to prepare mesoporous carbon with large pores and rigid carbon frameworks.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

Geng

Peng

et al. 2020

Advanced Energy Materials

153

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Carbon‐based nanomaterials have significantly pushed the boundary of electrochemical performance of lithium‐based batteries (LBs) thanks to their excellent conductivity, high specific surface area, controllable morphology, and intrinsic stability. Complementary to these inherent properties, various synthetic techniques have been adopted to prepare carbon‐based nanomaterials with diverse structures and different dimensionalities including 1D nanotubes and nanorods, 2D nanosheets and films, and 3D hierarchical architectures, which have been extensively applied as high‐performance electrode materials for energy storage and conversion. The present review aims to outline the structural design and composition engineering of carbon‐based nanomaterials as high‐performance electrodes of LBs including lithium‐ion batteries, lithium–sulfur batteries, and lithium–oxygen batteries. This review mainly focuses on the boosting of electrochemical performance of LBs by rational dimensional design and porous tailoring of advanced carbon‐based nanomaterials. Particular attention is also paid to integrating active materials into the carbon‐based nanomaterials, and the structure–performance relationship is also systematically discussed. The developmental trends and critical challenges in related fields are summarized, which may inspire more ideas for the design of advanced carbon‐based nanostructures with superior properties.

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“…There is a need to design an appropriate catalyst (PtRu) and highly conducting carbon support combination to simultaneously increase the activity and stability. In this aspect, the use of metal-organic frameworks (MOFs) as a template and precursor, for the gram scale synthesis of high surface area carbon, has attracted a lot of attention (Liu et al, 2008(Liu et al, , 2010Yuan et al, 2009;Hu et al, 2010;Pachfule et al, 2012;Aiyappa et al, 2013;Amali et al, 2014;Yan et al, 2014;Yang et al, 2014;Khan et al, 2017). MOFs consisting of zinc metal ion and carboxylic acid or substituted imidazole ligands have been used for carbon synthesis Aiyappa et al, 2013;Amali et al, 2014;Yan et al, 2014;Yang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Stable and Efficient PtRu Electrocatalysts Supported on Zn-BTC MOF Derived Microporous Carbon for Formic Acid Fuel Cells Application

et al. 2020

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Highly efficient, well-dispersed PtRu alloy nanoparticles supported on high surface area microporous carbon (MPC) electrocatalysts, are prepared and tested for formic acid oxidation reaction (FAOR). The MPC is obtained by controlled carbonization of a zincbenzenetricarboxylate metal-organic framework (Zn-BTC MOF) precursor at 950 • C, and PtRu (30 wt.%) nanoparticles (NPs) are prepared and deposited via a polyol chemical reduction method. The structural and morphological characterization of the synthesized electrocatalysts is carried out using powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), an energy dispersive X-ray (EDX) technique, and gas adsorption analysis (BET). The FAOR performance of the catalysts is investigated through cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). A correlation between high electrochemical surface area (ECSA) and high FAOR performance of the catalysts is observed. Among the materials employed, Pt 1 Ru 2 /MPC 950 with a high electrochemical surface area (25.3 m 2 g −1) consequently showed superior activity of the FAOR (I r = 9.50 mA cm −2 and J m = 2,403 mA mg −1 Pt) at room temperature, with improved tolerance and stability toward carbonaceous species. The superior electrochemical performance, and tolerance to CO-poisoning and long-term stability is attributed to the high surface area carbon support (1,455 m 2 g −1) and high percentage loading of ruthenium (20 wt.%). The addition of Ru promotes the efficiency of electrocatalyst by offering FAOR via a bifunctional mechanism.

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Soft-template carbonization approach of MOF-5 to mesoporous carbon nanospheres as excellent electrode materials for supercapacitor

Cited by 70 publications

References 62 publications

A green and template-free synthesis process of superior carbon material with ellipsoidal structure as enhanced material for supercapacitors

A green and template-free synthesis process of superior carbon material with ellipsoidal structure as enhanced material for supercapacitors

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

Stable and Efficient PtRu Electrocatalysts Supported on Zn-BTC MOF Derived Microporous Carbon for Formic Acid Fuel Cells Application

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